3878711268 has 24 divisors (see below), whose sum is σ = 9065011872. Its totient is φ = 1290805824.

The previous prime is 3878711261. The next prime is 3878711293. The reversal of 3878711268 is 8621178783.

It is a super-2 number, since 2×3878711268² = 30088802201020335648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3878711268.

It is not an unprimeable number, because it can be changed into a prime (3878711261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254530 + ... + 269337.

It is an arithmetic number, because the mean of its divisors is an integer number (377708828).

Almost surely, 2^3878711268 is an apocalyptic number.

It is an amenable number.

3878711268 is an abundant number, since it is smaller than the sum of its proper divisors (5186300604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3878711268 is a wasteful number, since it uses less digits than its factorization.

3878711268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524491 (or 524489 counting only the distinct ones).

The product of its digits is 903168, while the sum is 51.

The square root of 3878711268 is about 62279.3004777671. The cubic root of 3878711268 is about 1571.1916072927.

The spelling of 3878711268 in words is "three billion, eight hundred seventy-eight million, seven hundred eleven thousand, two hundred sixty-eight".